/// <summary>
 /// Main function.
 /// </summary>
 public static void Run()
 {
     Product p = new Product();
     XmlTextReader reader = new XmlTextReader(@"C:\Users\Oleh\Documents\Visual Studio 2012\Projects\ОБЧ\ОБЧ\XMLFile1.xml");
     p.Read(reader);
     p.Write();
     XmlTextWriter writer = new XmlTextWriter("result.xml", Encoding.UTF8);
     p.Write(writer);
     Product n = new Product();
     p.Read(reader);
     p.Write();
     p.Write(writer);
     writer.Close();
     Console.WriteLine("\nPress any key to continue");
     System.Console.ReadKey();
 }